#      ########
    ...    #......#
    #....###......#
       #..........#
       ##.r#......#
        ####......#
           #....###
     #.#####.####  
    ##.......#     
   ##...###.###### 
#  #...##.........#
#.##.#......##.##.#
 ................  
  ≈#P.....P#≈#P...#
##≈##P...P##≈##P..#
≈≈≈≈≈..<..≈≈≈≈≈...#
##≈##P...P##≈##P . 
   #P.....P# #     
  ...........      
............##     
........#####      
....#####          
....